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Clinical Trial
. 2001 Oct 15;21(20):RC172.
doi: 10.1523/JNEUROSCI.21-20-j0003.2001.

Motion-induced Perceptual Extrapolation of Blurred Visual Targets

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Free PMC article
Clinical Trial

Motion-induced Perceptual Extrapolation of Blurred Visual Targets

Y X Fu et al. J Neurosci. .
Free PMC article

Abstract

In the motion-extrapolation hypothesis, the visual system can extrapolate the instantaneous position of a moving object from its past trajectory. The existence of such a mechanism in human vision has been intensely debated. Here, we show compelling perceptual extrapolation of both first- and second-order moving stimuli, the magnitude of which depends on blurring of the visual target. The spatiotemporal characteristics of the extrapolation can be quantitatively accounted for by a simple model based on temporally biphasic neuronal response, a property widely observed among sensory neurons. Thus, motion-induced perceptual extrapolation exists in human vision, and spatial blurring is an important factor in the interaction between motion and perceptual localization.

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